Answer:
They would keep any one branch from having too much power.
Explanation:
The system of checks and balances is the main control principle in the regime of separation of powers. Through this, each of the state powers carries out functions and tasks that in turn limit the powers of the rest, which at the same time set limits to others in the same way. In this way, each of the state powers (executive, legislative and judicial) controls that the other powers do not exceed their functions. Thus, for example, Congress must approve several appointments made by the President, who in turn can veto laws passed by Congress.
